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| 1 | Centromere pairing precedes meiotic chromosome pairing in plants显示文摘Meiosis is a specialized eukaryotic cell division, in which diploid cells undergo a single round of DNA replication and two rounds of nuclear division to produce haploid gametes. In most eukaryotes, the core events of meiotic prophase I are chromosomal pairing,synapsis and recombination. To ensure accurate chromosomal segregation, homologs have to identify and align along each other at the onset of meiosis. Although much progress has been made in elucidating meiotic processes, information on the mechanisms underlying chromosome pairing is limited in contrast to the meiotic recombination and synapsis events. Recent research in many organisms indicated that centromere interactions during early meiotic prophase facilitate homologous chromosome pairing, and functional centromere is a prerequisite for centromere pairing such as in maize. Here, we summarize the recent achievements of chromosome pairing research on plants and other organisms, and outline centromere interactions, nuclear chromosome orientation,and meiotic cohesin, as main determinants of chromosome pairing in early meiotic prophase. | jing zhang fangpu han | 2017 | Science China(Life Sciences)2017，60，11： | 1 |
| 2 | Special Issue on Plant Epigenetics显示文摘Epigenetics refers to gene regulation at the chromatin level.This can occur via modification of the DNA and the core proteins of the chromatin,histones (Liu et al.,2014).In this issue,Reyes (2014) reviews recent advances in the roles of ATP-dependent chromatin-remodeling complexes on development,phytohormone response,and RNA-mediated silencing and Da Ines et al.(2014) report the role of chromatin remodeling in homologous chromosome pairing.In addition,Over and Michaels (2014) discuss the emergent roles of plant histone linker proteins in gene regulation,cell division,and development. | Xuemei Chen Yijun Qi Z. ReneeSung | 2014 | Molecular Plant2014，7，3： | 0 |
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